1996-2006 Yamaha 115-140HP Outboards Service Manuals, Page 429Get this manual

1996-2006 Yamaha 115-140HP Outboards Service Manuals, Page 429

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Before installing spark plug, clean the gasket surface and plug surfaceAlso it is suggested to apply thin film of Anti Seize Compound to the spark plug threads to prevent future thread seizure If torq